Churchyard beetle, Cellar beetle vs Common Big-eared Bat

Blaps mucronata compared with Micronycteris microtis

Key Differences

• Churchyard beetle, Cellar beetle is Endangered while Common Big-eared Bat is Least Concern.

Taxonomic Classification

Rank	Churchyard beetle, Cellar beetle	Common Big-eared Bat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Coleoptera (Beetles)	Chiroptera (Bats)
Family	Tenebrionidae	Phyllostomidae
Genus	Blaps	Micronycteris
Species	Blaps mucronata	Micronycteris microtis

Evolutionary Relationship

Churchyard beetle, Cellar beetle and Common Big-eared Bat share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Churchyard beetle, Cellar beetle

EN — Endangered

Common Big-eared Bat

LC — Least Concern

Physical Characteristics

Attribute	Churchyard beetle, Cellar beetle	Common Big-eared Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Churchyard beetle, Cellar beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (9 countries). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Common Big-eared Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Churchyard beetle, Cellar beetle

The churchyard beetle or cellar beetle (Blaps mucronata) is a species of large flightless darkling beetle in the family Tenebrionidae, order Coleoptera. Adults are robust, black-bodied beetles reaching twenty to thirty millimeters in length, with fused elytra that render them incapable of flight, a characteristic that restricts dispersal and makes local populations vulnerable to habitat loss. B. mucronata inhabits dark, cool, and humid environments such as cellars, crypts, cave entrances, stables, and the bases of old stone walls — the latter association explaining the common name churchyard beetle, as ancient stone churches with undisturbed subterranean spaces provide ideal habitat. The species is nocturnal and slow-moving, feeding on decaying organic matter, fungi, and plant debris. Its range historically extended across much of western Europe, including Belgium, Denmark, France, Ireland, and the Netherlands, but populations have declined significantly across this range due to habitat loss associated with modernization of buildings, renovation of historic structures, and reduction of traditional agricultural environments with earthen floors and organic refuse. B. mucronata is currently listed as Endangered on the IUCN Red List, reflecting its sensitivity to habitat degradation and limited dispersal capacity. Conservation efforts in several European countries focus on maintaining undisturbed cellars and crypts as microhabitat refuges. The species produces chemical secretions from abdominal glands as a defense against predators.

Common Big-eared Bat

The common big-eared bat (<em>Micronycteris microtis</em>) is a small insectivorous bat belonging to the family Phyllostomidae, native to tropical and subtropical regions of South America. Its range includes Colombia and Venezuela, where it typically inhabits diverse terrestrial and aquatic environments including forests and riparian zones. It is classified as Least Concern on the IUCN Red List, indicating a relatively stable population. As its common name suggests, <em>Micronycteris microtis</em> is distinguished by notably large ears relative to its body size, which enhance its echolocation capabilities for detecting prey and navigating complex forest environments. The species is often associated with lowland and foothill forests, roosting in caves, hollow trees, and dense vegetation. It typically feeds on insects and may also consume small vertebrates or fruit on occasion. Biological traits of this species remain poorly documented in the scientific literature.